Operating instructions
cod. 1592011000
1592011000 XC706M GB 31-08-2001
rel. 1.0
Pa. 17 / 23
11. Alarm list
Usually alarm conditions are signalled by means of:
1.
Activation of alarm relays (terminals 1-2 are closed)
2.
Buzzer activation
3.
Message on proper display
4.
Log of alarm, hour, data and duration.
The table at paragraph 11.3
11.1 Types of alarms and signalling managed
11.1.1
Pressure switch alarm, suction section
Terminals
Low pressure switch input: 5-6.
Parameters
SEP: It establishes if the input is activated by supplying (SEP=1) or by opening (SEP=0) the
terminals.
Actions
Every time the inputs are activated all the compressors are switched off. The instrument restart
the standard operating mode when the input is disabled. If there are PEn activation in the PEi
time, only manual resetting is allowed, by pressing the CLEAR key for 3s or by turning off and
on the instrument.
11.1.2
Compressors and safeties alarm.
Terminals
The terminals (from 22 to 33) really used depends on the number of loads. The protections
regarding the compressors are connected to these inputs. If one of these protections is
enabling (E.I. for lack of oil or overheating, etc,) the corresponding load is turn off.
Parameters
ALIP: It establishes if the input is activated by supplying (ALIP=1) or by opening (ALIP=0) the
terminals.
Actions
Every time one input is activated the corresponding output is turned off. The instrument restart
the standard operating mode when the input is disabled.
11.1.3
Probe failure alarm
It is generated by failure in the probe of suction.
Probe parameters
CPP: compressor management with faulty probe (A01C)
0 = maintaining the resource entered at the moment of the failure
1 =entering the resources established by means of SPr or PoPr parameters.
SPr: number of steps engaged with faulty probe. (0÷CpnU) It’s used only if CtyP=1.
PoPr:
capacity engaged with faulty probe (0÷255) It’s used only if CtyP=0.
